mirror of
https://github.com/peterbraden/node-opencv.git
synced 2025-12-08 19:45:55 +00:00
990 lines
24 KiB
C++
Executable File
990 lines
24 KiB
C++
Executable File
#include "Contours.h"
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#include "Matrix.h"
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#include "OpenCV.h"
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v8::Persistent<FunctionTemplate> Matrix::constructor;
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cv::Scalar setColor(Local<Object> objColor);
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//
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void
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Matrix::Init(Handle<Object> target) {
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HandleScope scope;
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//Class
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v8::Local<v8::FunctionTemplate> m = v8::FunctionTemplate::New(New);
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m->SetClassName(v8::String::NewSymbol("Matrix"));
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// Constructor
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constructor = Persistent<FunctionTemplate>::New(m);
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constructor->InstanceTemplate()->SetInternalFieldCount(1);
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constructor->SetClassName(String::NewSymbol("Matrix"));
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// Prototype
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//Local<ObjectTemplate> proto = constructor->PrototypeTemplate();
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NODE_SET_PROTOTYPE_METHOD(constructor, "row", Row);
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NODE_SET_PROTOTYPE_METHOD(constructor, "col", Col);
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NODE_SET_PROTOTYPE_METHOD(constructor, "pixelRow", PixelRow);
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NODE_SET_PROTOTYPE_METHOD(constructor, "pixelCol", PixelCol);
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NODE_SET_PROTOTYPE_METHOD(constructor, "empty", Empty);
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NODE_SET_PROTOTYPE_METHOD(constructor, "get", Get);
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NODE_SET_PROTOTYPE_METHOD(constructor, "set", Set);
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NODE_SET_PROTOTYPE_METHOD(constructor, "width", Width);
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NODE_SET_PROTOTYPE_METHOD(constructor, "height", Height);
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NODE_SET_PROTOTYPE_METHOD(constructor, "size", Size);
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NODE_SET_PROTOTYPE_METHOD(constructor, "clone", Clone);
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NODE_SET_PROTOTYPE_METHOD(constructor, "toBuffer", ToBuffer);
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NODE_SET_PROTOTYPE_METHOD(constructor, "toBufferAsync", ToBufferAsync);
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NODE_SET_PROTOTYPE_METHOD(constructor, "ellipse", Ellipse);
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NODE_SET_PROTOTYPE_METHOD(constructor, "rectangle", Rectangle);
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NODE_SET_PROTOTYPE_METHOD(constructor, "line", Line);
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NODE_SET_PROTOTYPE_METHOD(constructor, "save", Save);
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NODE_SET_PROTOTYPE_METHOD(constructor, "saveAsync", SaveAsync);
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NODE_SET_PROTOTYPE_METHOD(constructor, "resize", Resize);
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NODE_SET_PROTOTYPE_METHOD(constructor, "pyrDown", PyrDown);
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NODE_SET_PROTOTYPE_METHOD(constructor, "pyrUp", PyrUp);
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NODE_SET_PROTOTYPE_METHOD(constructor, "channels", Channels);
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NODE_SET_PROTOTYPE_METHOD(constructor, "convertGrayscale", ConvertGrayscale);
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NODE_SET_PROTOTYPE_METHOD(constructor, "convertHSVscale", ConvertHSVscale);
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NODE_SET_PROTOTYPE_METHOD(constructor, "gaussianBlur", GaussianBlur);
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NODE_SET_PROTOTYPE_METHOD(constructor, "copy", Copy);
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NODE_SET_PROTOTYPE_METHOD(constructor, "flip", Flip);
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NODE_SET_PROTOTYPE_METHOD(constructor, "ptr", Ptr);
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NODE_SET_PROTOTYPE_METHOD(constructor, "addWeighted", AddWeighted);
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NODE_SET_PROTOTYPE_METHOD(constructor, "split", Split);
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NODE_SET_PROTOTYPE_METHOD(constructor, "canny", Canny);
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NODE_SET_PROTOTYPE_METHOD(constructor, "dilate", Dilate);
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NODE_SET_PROTOTYPE_METHOD(constructor, "erode", Erode);
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NODE_SET_PROTOTYPE_METHOD(constructor, "findContours", FindContours);
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NODE_SET_PROTOTYPE_METHOD(constructor, "drawContour", DrawContour);
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NODE_SET_PROTOTYPE_METHOD(constructor, "drawAllContours", DrawAllContours);
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NODE_SET_PROTOTYPE_METHOD(constructor, "goodFeaturesToTrack", GoodFeaturesToTrack);
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NODE_SET_PROTOTYPE_METHOD(constructor, "houghLinesP", HoughLinesP);
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NODE_SET_PROTOTYPE_METHOD(constructor, "inRange", inRange);
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NODE_SET_METHOD(constructor, "Eye", Eye);
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target->Set(String::NewSymbol("Matrix"), m->GetFunction());
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};
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Handle<Value>
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Matrix::New(const Arguments &args) {
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HandleScope scope;
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if (args.This()->InternalFieldCount() == 0)
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return v8::ThrowException(v8::Exception::TypeError(v8::String::New("Cannot instantiate without new")));
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Matrix *mat;
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if (args.Length() == 0){
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mat = new Matrix;
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} else if (args.Length() == 2 && args[0]->IsInt32() && args[1]->IsInt32()){
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mat = new Matrix(args[0]->IntegerValue(), args[1]->IntegerValue());
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} else if (args.Length() == 5) {
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Matrix *other = ObjectWrap::Unwrap<Matrix>(args[0]->ToObject());
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int x = args[1]->IntegerValue();
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int y = args[2]->IntegerValue();
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int w = args[3]->IntegerValue();
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int h = args[4]->IntegerValue();
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mat = new Matrix(other->mat, cv::Rect(x, y, w, h));
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}
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mat->Wrap(args.Holder());
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return scope.Close(args.Holder());
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}
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Matrix::Matrix(): ObjectWrap() {
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mat = cv::Mat();
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}
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Matrix::Matrix(int rows, int cols): ObjectWrap() {
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mat = cv::Mat(rows, cols, CV_32FC3);
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}
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Matrix::Matrix(cv::Mat m, cv::Rect roi): ObjectWrap() {
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mat = cv::Mat(m, roi);
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}
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Handle<Value>
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Matrix::Empty(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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return scope.Close(Boolean::New(self->mat.empty()));
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}
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double
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Matrix::DblGet(cv::Mat mat, int i, int j){
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double val = 0;
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cv::Vec3b pix;
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unsigned int pint = 0;
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switch(mat.type()){
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case CV_32FC3:
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pix = mat.at<cv::Vec3b>(i, j);
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pint |= (uchar) pix.val[2];
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pint |= ((uchar) pix.val[1]) << 8;
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pint |= ((uchar) pix.val[0]) << 16;
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val = (double) pint;
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break;
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case CV_64FC1:
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val = mat.at<double>(i, j);
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break;
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default:
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val = mat.at<double>(i,j);
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break;
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}
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return val;
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}
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Handle<Value>
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Matrix::Get(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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int i = args[0]->IntegerValue();
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int j = args[1]->IntegerValue();
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double val = Matrix::DblGet(self->mat, i, j);
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return scope.Close(Number::New(val));
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}
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Handle<Value>
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Matrix::Set(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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int i = args[0]->IntegerValue();
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int j = args[1]->IntegerValue();
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double val = args[2]->NumberValue();
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int vint = 0;
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if(args.Length() == 4) {
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self->mat.at<cv::Vec3b>(i,j)[args[3]->NumberValue()] = val;
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} else if(args.Length() == 3) {
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switch(self->mat.type()){
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case CV_32FC3:
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vint = static_cast<unsigned int>(val + 0.5);
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self->mat.at<cv::Vec3b>(i,j)[0] = (uchar) (vint >> 16) & 0xff;
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self->mat.at<cv::Vec3b>(i,j)[1] = (uchar) (vint >> 8) & 0xff;
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self->mat.at<cv::Vec3b>(i,j)[2] = (uchar) (vint) & 0xff;
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//printf("!!!i %x, %x, %x", (vint >> 16) & 0xff, (vint >> 8) & 0xff, (vint) & 0xff);
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break;
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default:
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self->mat.at<double>(i,j) = val;
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}
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} else {
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return v8::ThrowException(v8::Exception::TypeError(String::New("Invalid number of arguments")));
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}
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return scope.Close(Undefined());
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}
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Handle<Value>
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Matrix::Size(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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v8::Local<v8::Array> arr = v8::Array::New(2);
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arr->Set(0, Number::New(self->mat.size().height));
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arr->Set(1, Number::New(self->mat.size().width));
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return scope.Close(arr);
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}
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Handle<Value>
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Matrix::Clone(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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Local<Object> im_h = Matrix::constructor->GetFunction()->NewInstance();
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Matrix *m = ObjectWrap::Unwrap<Matrix>(im_h);
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m->mat = self->mat.clone();
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return scope.Close(im_h);
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}
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Handle<Value>
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Matrix::Row(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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int width = self->mat.size().width;
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int y = args[0]->IntegerValue();
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v8::Local<v8::Array> arr = v8::Array::New(width);
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for (int x=0; x<width; x++){
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double v = Matrix::DblGet(self->mat, y, x);
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arr->Set(x, Number::New(v));
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}
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return scope.Close(arr);
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}
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Handle<Value>
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Matrix::PixelRow(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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int width = self->mat.size().width;
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int y = args[0]->IntegerValue();
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v8::Local<v8::Array> arr = v8::Array::New(width * 3);
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for (int x=0; x<width; x++){
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cv::Vec3b pixel = self->mat.at<cv::Vec3b>(y, x);
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int offset = x * 3;
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arr->Set(offset , Number::New((double)pixel.val[0]));
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arr->Set(offset + 1, Number::New((double)pixel.val[1]));
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arr->Set(offset + 2, Number::New((double)pixel.val[2]));
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}
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return scope.Close(arr);
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}
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Handle<Value>
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Matrix::Col(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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int height = self->mat.size().height;
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int x = args[0]->IntegerValue();
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v8::Local<v8::Array> arr = v8::Array::New(height);
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for (int y=0; y<height; y++){
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double v = Matrix::DblGet(self->mat, y, x);
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arr->Set(y, Number::New(v));
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}
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return scope.Close(arr);
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}
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Handle<Value>
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Matrix::PixelCol(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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int height = self->mat.size().height;
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int x = args[0]->IntegerValue();
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v8::Local<v8::Array> arr = v8::Array::New(height * 3);
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for (int y=0; y<height; y++){
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cv::Vec3b pixel = self->mat.at<cv::Vec3b>(y, x);
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int offset = y * 3;
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arr->Set(offset , Number::New((double)pixel.val[0]));
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arr->Set(offset + 1, Number::New((double)pixel.val[1]));
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arr->Set(offset + 2, Number::New((double)pixel.val[2]));
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}
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return scope.Close(arr);
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}
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Handle<Value>
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Matrix::Width(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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return scope.Close(Number::New(self->mat.size().width));
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}
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Handle<Value>
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Matrix::Height(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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return scope.Close(Number::New(self->mat.size().height));
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}
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Handle<Value>
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Matrix::Channels(const Arguments& args){
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SETUP_FUNCTION(Matrix)
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return scope.Close(Number::New(self->mat.channels()));
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}
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Handle<Value>
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Matrix::ToBuffer(const v8::Arguments& args){
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SETUP_FUNCTION(Matrix)
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if (args.Length() > 0){
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return Matrix::ToBufferAsync(args);
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}
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std::vector<uchar> vec(0);
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std::vector<int> params(0);//CV_IMWRITE_JPEG_QUALITY 90
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cv::imencode(".jpg", self->mat, vec, params);
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node::Buffer *buf = node::Buffer::New(vec.size());
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uchar* data = (uchar*) Buffer::Data(buf);
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memcpy(data, &vec[0], vec.size());
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v8::Local<v8::Object> globalObj = v8::Context::GetCurrent()->Global();
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v8::Local<v8::Function> bufferConstructor = v8::Local<v8::Function>::Cast(globalObj->Get(v8::String::New("Buffer")));
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v8::Handle<v8::Value> constructorArgs[3] = {buf->handle_, v8::Integer::New(vec.size()), v8::Integer::New(0)};
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v8::Local<v8::Object> actualBuffer = bufferConstructor->NewInstance(3, constructorArgs);
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return scope.Close(actualBuffer);
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}
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struct matrixToBuffer_baton_t {
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Matrix *mm;
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Persistent<Function> cb;
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std::vector<uchar> res;
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uv_work_t request;
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};
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void AsyncToBufferAsync(uv_work_t *req);
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void AfterAsyncToBufferAsync(uv_work_t *req);
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Handle<Value>
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Matrix::ToBufferAsync(const v8::Arguments& args){
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SETUP_FUNCTION(Matrix)
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REQ_FUN_ARG(0, cb);
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matrixToBuffer_baton_t *baton = new matrixToBuffer_baton_t();
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baton->mm = self;
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baton->cb = Persistent<Function>::New(cb);
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baton->request.data = baton;
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uv_queue_work(uv_default_loop(), &baton->request, AsyncToBufferAsync, (uv_after_work_cb)AfterAsyncToBufferAsync);
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return Undefined();
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}
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void AsyncToBufferAsync(uv_work_t *req) {
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matrixToBuffer_baton_t *baton = static_cast<matrixToBuffer_baton_t *>(req->data);
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std::vector<uchar> vec(0);
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std::vector<int> params(0);//CV_IMWRITE_JPEG_QUALITY 90
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cv::imencode(".jpg", baton->mm->mat, vec, params);
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baton->res = vec;
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}
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void AfterAsyncToBufferAsync(uv_work_t *req) {
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HandleScope scope;
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matrixToBuffer_baton_t *baton = static_cast<matrixToBuffer_baton_t *>(req->data);
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// ev_unref(EV_DEFAULT_UC);
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// baton->cc->Unref();
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Local<Value> argv[2];
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argv[0] = Local<Value>::New(Null());
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node::Buffer *buf = node::Buffer::New(baton->res.size());
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uchar* data = (uchar*) Buffer::Data(buf);
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memcpy(data, &baton->res[0], baton->res.size());
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v8::Local<v8::Object> globalObj = v8::Context::GetCurrent()->Global();
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v8::Local<v8::Function> bufferConstructor = v8::Local<v8::Function>::Cast(globalObj->Get(v8::String::New("Buffer")));
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v8::Handle<v8::Value> constructorArgs[3] = {buf->handle_, v8::Integer::New(baton->res.size()), v8::Integer::New(0)};
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v8::Local<v8::Object> actualBuffer = bufferConstructor->NewInstance(3, constructorArgs);
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argv[1] = actualBuffer;
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TryCatch try_catch;
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baton->cb->Call(Context::GetCurrent()->Global(), 2, argv);
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if (try_catch.HasCaught()) {
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FatalException(try_catch);
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}
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baton->cb.Dispose();
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delete baton;
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// return 0;
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}
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Handle<Value>
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Matrix::Ellipse(const v8::Arguments& args){
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SETUP_FUNCTION(Matrix)
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int x = args[0]->Uint32Value();
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int y = args[1]->Uint32Value();
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int width = args[2]->Uint32Value();
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int height = args[3]->Uint32Value();
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cv::Scalar color(0, 0, 255);
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if(args[4]->IsArray()) {
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Local<Object> objColor = args[4]->ToObject();
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color = setColor(objColor);
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}
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int thickness = 1;
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if(args[5]->IntegerValue())
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thickness = args[5]->IntegerValue();
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cv::ellipse(self->mat, cv::Point(x, y), cv::Size(width, height), 0, 0, 360, color, thickness, 8, 0);
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return scope.Close(v8::Null());
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}
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Handle<Value>
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Matrix::Rectangle(const Arguments& args) {
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SETUP_FUNCTION(Matrix)
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if(args[0]->IsArray() && args[1]->IsArray()) {
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Local<Object> xy = args[0]->ToObject();
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Local<Object> width_height = args[1]->ToObject();
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cv::Scalar color(0, 0, 255);
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if(args[2]->IsArray()) {
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Local<Object> objColor = args[2]->ToObject();
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color = setColor(objColor);
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}
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int x = xy->Get(0)->IntegerValue();
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int y = xy->Get(1)->IntegerValue();
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int width = width_height->Get(0)->IntegerValue();
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int height = width_height->Get(1)->IntegerValue();
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int thickness = 1;
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if(args[3]->IntegerValue())
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thickness = args[3]->IntegerValue();
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cv::rectangle(self->mat, cv::Point(x, y), cv::Point(width, height), color, thickness);
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}
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return scope.Close(v8::Null());
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}
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Handle<Value>
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Matrix::Line(const Arguments& args) {
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SETUP_FUNCTION(Matrix)
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if(args[0]->IsArray() && args[1]->IsArray()) {
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Local<Object> xy1 = args[0]->ToObject();
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Local<Object> xy2 = args[1]->ToObject();
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cv::Scalar color(0, 0, 255);
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if(args[2]->IsArray()) {
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Local<Object> objColor = args[2]->ToObject();
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color = setColor(objColor);
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}
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int x1 = xy1->Get(0)->IntegerValue();
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int y1 = xy1->Get(1)->IntegerValue();
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int x2 = xy2->Get(0)->IntegerValue();
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int y2 = xy2->Get(1)->IntegerValue();
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int thickness = 1;
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if(args[3]->IntegerValue())
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thickness = args[3]->IntegerValue();
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cv::line(self->mat, cv::Point(x1, y1), cv::Point(x2, y2), color, thickness);
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}
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return scope.Close(v8::Null());
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}
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|
|
Handle<Value>
|
|
Matrix::Save(const v8::Arguments& args) {
|
|
SETUP_FUNCTION(Matrix)
|
|
|
|
if (args.Length() > 1) {
|
|
return SaveAsync(args);
|
|
}
|
|
|
|
if (!args[0]->IsString())
|
|
return v8::ThrowException(v8::Exception::TypeError(String::New("filename required")));
|
|
|
|
String::AsciiValue filename(args[0]);
|
|
int res = cv::imwrite(*filename, self->mat);
|
|
return scope.Close(Number::New(res));
|
|
}
|
|
|
|
|
|
struct save_baton_t {
|
|
Matrix *mm;
|
|
Persistent<Function> cb;
|
|
std::string filename;
|
|
int res;
|
|
uv_work_t request;
|
|
};
|
|
|
|
void DoSaveAsync(uv_work_t *req);
|
|
void AfterSaveAsync(uv_work_t *req);
|
|
|
|
Handle<Value>
|
|
Matrix::SaveAsync(const v8::Arguments& args){
|
|
SETUP_FUNCTION(Matrix)
|
|
|
|
if (!args[0]->IsString())
|
|
return v8::ThrowException(v8::Exception::TypeError(String::New("filename required")));
|
|
|
|
String::AsciiValue filename(args[0]);
|
|
|
|
REQ_FUN_ARG(1, cb);
|
|
|
|
save_baton_t *baton = new save_baton_t();
|
|
baton->mm = self;
|
|
baton->cb = Persistent<Function>::New(cb);
|
|
baton->filename = *filename;
|
|
baton->request.data = baton;
|
|
|
|
uv_queue_work(uv_default_loop(), &baton->request, DoSaveAsync, (uv_after_work_cb)AfterSaveAsync);
|
|
|
|
return Undefined();
|
|
}
|
|
|
|
|
|
void DoSaveAsync(uv_work_t *req) {
|
|
save_baton_t *baton = static_cast<save_baton_t *>(req->data);
|
|
|
|
int res = cv::imwrite(baton->filename.c_str(), baton->mm->mat);
|
|
baton->res = res;
|
|
}
|
|
|
|
void AfterSaveAsync(uv_work_t *req) {
|
|
HandleScope scope;
|
|
save_baton_t *baton = static_cast<save_baton_t *>(req->data);
|
|
|
|
Local<Value> argv[2]; // (err, result)
|
|
|
|
argv[0] = Local<Value>::New(Null());
|
|
argv[1] = Number::New(baton->res);
|
|
|
|
TryCatch try_catch;
|
|
|
|
baton->cb->Call(Context::GetCurrent()->Global(), 2, argv);
|
|
|
|
if (try_catch.HasCaught()) {
|
|
FatalException(try_catch);
|
|
}
|
|
|
|
baton->cb.Dispose();
|
|
|
|
delete baton;
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::Eye(const v8::Arguments& args){
|
|
HandleScope scope;
|
|
|
|
int w = args[0]->Uint32Value();
|
|
int h = args[1]->Uint32Value();
|
|
|
|
Local<Object> im_h = Matrix::constructor->GetFunction()->NewInstance();
|
|
Matrix *img = ObjectWrap::Unwrap<Matrix>(im_h);
|
|
cv::Mat mat = cv::Mat::eye(w, h, CV_64FC1);
|
|
|
|
img->mat = mat;
|
|
return scope.Close(im_h);
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::ConvertGrayscale(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
if(self->mat.channels() != 3)
|
|
return v8::ThrowException(String::New("Image is no 3-channel"));
|
|
|
|
cv::Mat gray;
|
|
|
|
cv::cvtColor(self->mat, gray, CV_BGR2GRAY);
|
|
gray.copyTo(self->mat);
|
|
|
|
|
|
return scope.Close(v8::Null());
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::ConvertHSVscale(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
if(self->mat.channels() != 3)
|
|
return v8::ThrowException(String::New("Image is no 3-channel"));
|
|
|
|
cv::Mat hsv;
|
|
|
|
cv::cvtColor(self->mat, hsv, CV_BGR2HSV);
|
|
hsv.copyTo(self->mat);
|
|
|
|
return scope.Close(v8::Null());
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::GaussianBlur(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
cv::Size ksize;
|
|
cv::Mat blurred;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
|
|
if (args.Length() < 1) {
|
|
ksize = cv::Size(5, 5);
|
|
}
|
|
else {
|
|
if(!args[0]->IsArray()) {
|
|
return ThrowException(Exception::TypeError(String::New(
|
|
"'ksize' argument must be a 2 double array")));
|
|
}
|
|
Local<Object> array = args[0]->ToObject();
|
|
// TODO: Length check
|
|
Local<Value> x = array->Get(0);
|
|
Local<Value> y = array->Get(1);
|
|
if(!x->IsNumber() || !y->IsNumber()) {
|
|
return ThrowException(Exception::TypeError(String::New(
|
|
"'ksize' argument must be a 2 double array")));
|
|
}
|
|
ksize = cv::Size(x->NumberValue(), y->NumberValue());
|
|
}
|
|
|
|
cv::GaussianBlur(self->mat, blurred, ksize, 0);
|
|
blurred.copyTo(self->mat);
|
|
|
|
return scope.Close(v8::Null());
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::Copy(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
|
|
Local<Object> img_to_return = Matrix::constructor->GetFunction()->NewInstance();
|
|
Matrix *img = ObjectWrap::Unwrap<Matrix>(img_to_return);
|
|
self->mat.copyTo(img->mat);
|
|
|
|
return scope.Close(img_to_return);
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::Flip(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
|
|
if ( args.Length() < 1 || !args[0]->IsInt32() ) {
|
|
return v8::ThrowException(Exception::TypeError(String::New(
|
|
"Flip requires an integer flipCode argument (0 = X axis, positive = Y axis, negative = both axis)")));
|
|
}
|
|
|
|
int flipCode = args[0]->ToInt32()->Value();
|
|
|
|
Local<Object> img_to_return = Matrix::constructor->GetFunction()->NewInstance();
|
|
Matrix *img = ObjectWrap::Unwrap<Matrix>(img_to_return);
|
|
cv::flip(self->mat, img->mat, flipCode);
|
|
|
|
return scope.Close(img_to_return);
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::Ptr(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
int line = args[0]->Uint32Value();
|
|
|
|
|
|
char* data = self->mat.ptr<char>(line);
|
|
//uchar* data = self->mat.data;
|
|
|
|
/*
|
|
char *mydata = "Random raw data\0";
|
|
*/
|
|
node::Buffer *return_buffer = Buffer::New((char *)data, self->mat.step);
|
|
return scope.Close( return_buffer->handle_ );
|
|
|
|
// return Undefined();
|
|
}
|
|
|
|
Handle<Value>
|
|
Matrix::AddWeighted(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
|
|
Matrix *src1 = ObjectWrap::Unwrap<Matrix>(args[0]->ToObject());
|
|
Matrix *src2 = ObjectWrap::Unwrap<Matrix>(args[2]->ToObject());
|
|
|
|
float alpha = args[1]->NumberValue();
|
|
float beta = args[3]->NumberValue();
|
|
int gamma = 0;
|
|
|
|
cv::addWeighted(src1->mat, alpha, src2->mat, beta, gamma, self->mat);
|
|
|
|
|
|
return scope.Close(v8::Null());
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::Split(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
//Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
|
|
return scope.Close(v8::Null());
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::Canny(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
int lowThresh = args[0]->NumberValue();
|
|
int highThresh = args[1]->NumberValue();
|
|
|
|
cv::Canny(self->mat, self->mat, lowThresh, highThresh);
|
|
|
|
return scope.Close(v8::Null());
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::Dilate(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
int niters = args[0]->NumberValue();
|
|
|
|
cv::dilate(self->mat, self->mat, cv::Mat(), cv::Point(-1, -1), niters);
|
|
|
|
return scope.Close(v8::Null());
|
|
}
|
|
|
|
Handle<Value>
|
|
Matrix::Erode(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
int niters = args[0]->NumberValue();
|
|
|
|
cv::erode(self->mat, self->mat, cv::Mat(), cv::Point(-1, -1), niters);
|
|
|
|
return scope.Close(v8::Null());
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::FindContours(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
|
|
Local<Object> conts_to_return= Contour::constructor->GetFunction()->NewInstance();
|
|
Contour *contours = ObjectWrap::Unwrap<Contour>(conts_to_return);
|
|
|
|
cv::findContours(self->mat, contours->contours, CV_RETR_LIST, CV_CHAIN_APPROX_SIMPLE);
|
|
|
|
return scope.Close(conts_to_return);
|
|
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::DrawContour(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
Contour *cont = ObjectWrap::Unwrap<Contour>(args[0]->ToObject());
|
|
int pos = args[1]->NumberValue();
|
|
|
|
cv::Scalar color(0, 0, 255);
|
|
|
|
if(args[2]->IsArray()) {
|
|
Local<Object> objColor = args[2]->ToObject();
|
|
color = setColor(objColor);
|
|
}
|
|
|
|
cv::drawContours(self->mat, cont->contours, pos, color, 1);
|
|
|
|
return Undefined();
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::DrawAllContours(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
Contour *cont = ObjectWrap::Unwrap<Contour>(args[0]->ToObject());
|
|
|
|
cv::Scalar color(0, 0, 255);
|
|
|
|
if(args[1]->IsArray()) {
|
|
Local<Object> objColor = args[1]->ToObject();
|
|
color = setColor(objColor);
|
|
}
|
|
|
|
cv::drawContours(self->mat, cont->contours, -1, color, 1);
|
|
|
|
return Undefined();
|
|
}
|
|
|
|
Handle<Value>
|
|
Matrix::GoodFeaturesToTrack(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
std::vector<cv::Point2f> corners;
|
|
|
|
cv::Mat gray;
|
|
|
|
cvtColor(self->mat, gray, CV_BGR2GRAY);
|
|
equalizeHist(gray, gray);
|
|
|
|
cv::goodFeaturesToTrack(gray, corners, 500, 0.01, 10);
|
|
|
|
v8::Local<v8::Array> arr = v8::Array::New(corners.size());
|
|
|
|
|
|
for (unsigned int i=0; i<corners.size(); i++){
|
|
v8::Local<v8::Array> pt = v8::Array::New(2);
|
|
pt->Set(0, Number::New((double) corners[i].x));
|
|
pt->Set(1, Number::New((double) corners[i].y));
|
|
arr->Set(i, pt);
|
|
}
|
|
|
|
return scope.Close(arr);
|
|
|
|
}
|
|
|
|
Handle<Value>
|
|
Matrix::HoughLinesP(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
std::vector<cv::Vec4i> lines;
|
|
|
|
cv::Mat gray;
|
|
|
|
|
|
equalizeHist(self->mat, gray);
|
|
// cv::Canny(gray, gray, 50, 200, 3);
|
|
cv::HoughLinesP(gray, lines, 1, CV_PI/180, 80, 30, 10);
|
|
|
|
v8::Local<v8::Array> arr = v8::Array::New(lines.size());
|
|
|
|
|
|
for (unsigned int i=0; i<lines.size(); i++){
|
|
v8::Local<v8::Array> pt = v8::Array::New(4);
|
|
pt->Set(0, Number::New((double) lines[i][0]));
|
|
pt->Set(1, Number::New((double) lines[i][1]));
|
|
pt->Set(2, Number::New((double) lines[i][2]));
|
|
pt->Set(3, Number::New((double) lines[i][3]));
|
|
arr->Set(i, pt);
|
|
}
|
|
|
|
return scope.Close(arr);
|
|
|
|
}
|
|
|
|
cv::Scalar setColor(Local<Object> objColor) {
|
|
|
|
Local<Value> valB = objColor->Get(0);
|
|
Local<Value> valG = objColor->Get(1);
|
|
Local<Value> valR = objColor->Get(2);
|
|
|
|
cv::Scalar color = cv::Scalar(valB->IntegerValue(), valG->IntegerValue(), valR->IntegerValue());
|
|
return color;
|
|
|
|
}
|
|
|
|
|
|
Handle<Value>
|
|
Matrix::Resize(const v8::Arguments& args){
|
|
HandleScope scope;
|
|
|
|
int x = args[0]->Uint32Value();
|
|
int y = args[1]->Uint32Value();
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
cv::Mat res = cv::Mat(x, y, CV_32FC3);
|
|
cv::resize(self->mat, res, cv::Size(x, y), 0, 0, cv::INTER_LINEAR);
|
|
~self->mat;
|
|
self->mat = res;
|
|
|
|
|
|
return scope.Close(Undefined());
|
|
}
|
|
|
|
Handle<Value>
|
|
Matrix::PyrDown(const v8::Arguments& args){
|
|
SETUP_FUNCTION(Matrix)
|
|
|
|
cv::pyrDown(self->mat, self->mat);
|
|
return scope.Close(v8::Undefined());
|
|
}
|
|
|
|
Handle<Value>
|
|
Matrix::PyrUp(const v8::Arguments& args){
|
|
SETUP_FUNCTION(Matrix)
|
|
|
|
cv::pyrUp(self->mat, self->mat);
|
|
return scope.Close(v8::Undefined());
|
|
}
|
|
|
|
Handle<Value>
|
|
Matrix::inRange(const v8::Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
|
|
/*if(self->mat.channels() != 3)
|
|
return v8::ThrowException(String::New("Image is no 3-channel"));*/
|
|
|
|
if(args[0]->IsArray() && args[1]->IsArray()) {
|
|
Local<Object> args_lowerb = args[0]->ToObject();
|
|
Local<Object> args_upperb = args[1]->ToObject();
|
|
|
|
cv::Scalar lowerb(0, 0, 0);
|
|
cv::Scalar upperb(0, 0, 0);
|
|
|
|
lowerb = setColor(args_lowerb);
|
|
upperb = setColor(args_upperb);
|
|
|
|
cv::Mat mask;
|
|
cv::inRange(self->mat, lowerb, upperb, mask);
|
|
mask.copyTo(self->mat);
|
|
}
|
|
|
|
|
|
return scope.Close(v8::Null());
|
|
}
|